Is it logical to use GPU cards for mining? ASIC machines are special devices manufactured only for mining. These devices are returning after a while as scrap. But yet high-end GPU cards can still be used, even if they lose the mining feature. The GPU cards can be used on the computer to play games. It's easier to sell GPU cards as second hand.

What are your thoughts about this?

As far as I am aware of ASIC is useful only for BTC mining, it has no or little resell value. GPU cards can be sold 2/3 of their value after a 100% ROI on them or on the whole systems used. So, I stick to GPU mining.Plus BTC mining diffuculty only grows. GPU cards make mining easier because I can choose any coin or even dual mine them. I find Nvidia cards cooler and more quiet, but somewhat 1.5 times expensive. With Radeon I might suggest to look at the most heavy cards because they tend to have better cooling system (more metal used).

Plus, of course, I can play games or do some work with same old PC -.-